Integrated Fluid Ejection and Spectroscopic Sensing for Real-Time Feedback

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Solution Overview

Problem

Existing reaction monitoring systems require time-consuming alignment and repositioning of deposition sites for fluid ejection and spectroscopic sensing, leading to inefficient and non-real-time reaction state determination.

Innovation Solution

Integration of a fluid ejector, sensor array, and light dispersive element as a single unit, allowing concurrent aiming at a deposition site for fluid ejection and spectroscopic sensing without repositioning, enabling real-time reaction state monitoring and closed-loop feedback.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate alignment and repositioning procedures are used for fluid ejection and spectroscopic sensing, then each function can be independently optimized, but the overall process time increases and real-time monitoring is lost

Engineering Contradiction:
Improvefunctional optimizationVSAvoidalignment and repositioning time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent combines the fluid ejector and spectroscopic sensing system into a single integrated unit that can simultaneously perform both fluid ejection and spectroscopic measurement at the same deposition site without requiring separate alignment procedures. This merging eliminates the time loss associated with repositioning and alignment while maintaining the functional optimization of both subsystems.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If multiple separate devices are used for fluid ejection and spectroscopic sensing, then each device can be specialized, but the system complexity increases and compact integration is lost

Engineering Contradiction:
Improvefunctional specializationVSAvoidsystem integration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The integrated unit is designed to perform multiple functions (fluid ejection and spectroscopic sensing) within a single device structure. This multi-functionality approach allows the system to maintain the specialized capabilities of separate devices while reducing overall system complexity and achieving compact integration.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If sequential operations are used for fluid ejection and spectroscopic sensing, then each operation can be performed optimally, but the feedback loop time increases and real-time control is lost

Engineering Contradiction:
Improveoperational optimizationVSAvoidfeedback loop speed
Core Design Contradiction:
ReliabilityVSSpeed

Solution Approach 1:

The integrated system enables continuous operation where fluid ejection and spectroscopic sensing occur simultaneously without sequential interruptions. This continuity allows for real-time monitoring and immediate feedback control, eliminating the delays associated with sequential operations while maintaining operational optimization through coordinated control of both functions.

Inventive Principle:
Principle #20Continuity of useful action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Facilitates faster and more accurate real-time monitoring of chemical or biological reactions by eliminating the need for site repositioning and alignment, enabling immediate feedback for controlled fluid ejection based on reaction states.

Implementation Method 1

a light dispersive element to project dispersed light onto the sensor array

Methodology Applied
Scientific EffectLight dispersion: Dispersion (of waves)

Data Source

PatentUS12560531B2Integrated fluid ejection and spectroscopic sensing
Publication Date: 2026.02.24 HEWLETT PACKARD DEVELOPMENT COMPANY LP
  • US12560531B2 patent drawing
  • US12560531B2 patent drawing
  • US12560531B2 patent drawing

AI summary

An integrated fluid ejection and spectroscopic sensing system may include a fluid ejector to eject a droplet of fluid through an ejection orifice towards a deposition site, a sensor array, a dispersive element to project light onto the sensor array. The dispersive element, the sensor and the fluid ejector are joined as part of an integrated unit.